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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes Human disease related genes Plasma proteins
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
5
Cytoband
q13.2
Chromosome location (bp)
72107234 - 72209565
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Facilitates tyrosination of alpha-tubulin in neuronal microtubules (By similarity). Phosphorylated MAP1B is required for proper microtubule dynamics and plays a role in the cytoskeletal changes that accompany neuronal differentiation and neurite extension 1. Possibly MAP1B binds to at least two tubulin subunits in the polymer, and this bridging of subunits might be involved in nucleating microtubule polymerization and in stabilizing microtubules. Acts as a positive cofactor in DAPK1-mediated autophagic vesicle formation and membrane blebbing....show less
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene encodes a protein that belongs to the microtubule-associated protein family. The proteins of this family are thought to be involved in microtubule assembly, which is an essential step in neurogenesis. The product of this gene is a precursor polypeptide that presumably undergoes proteolytic processing to generate the final MAP1B heavy chain and LC1 light chain. Gene knockout studies of the mouse microtubule-associated protein 1B gene suggested an important role in development and function of the nervous system. [provided by RefSeq, Jul 2008]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
P46821 [Direct mapping] Microtubule-associated protein 1B MAP1B heavy chain MAP1 light chain LC1
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Human disease related genes Congenital malformations Congenital malformations of the nervous system Nervous system diseases Ear disease Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
D6RA40 [Direct mapping] Microtubule-associated protein 1B
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital malformations Congenital malformations of the nervous system Nervous system diseases Ear disease Protein evidence (Ezkurdia et al 2014)
D6RA32 [Direct mapping] Microtubule-associated protein 1B
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SCAMPI predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital malformations Congenital malformations of the nervous system Nervous system diseases Ear disease Protein evidence (Ezkurdia et al 2014)
D6RGJ3 [Direct mapping] Microtubule-associated protein 1B
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital malformations Congenital malformations of the nervous system Nervous system diseases Ear disease Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
